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i4.cn

https://i4.cn· First analyzed 03 May 2026· Updated 03 May 2026
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i4.cn
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Mobile screenshot of i4.cn
Mobile

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Hosting Provider

Meteverse Limited

IP Address

138.113.149.123

Site Location

🇨🇳 Chinavia tld

Server Location

🇬🇧 London, United Kingdom

ASN

AS54994

Server

Nginx

Performance

98

Core Web Vitals

Weight

First Contentful Paint
849 ms10%
Speed Index
1.1 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
17 KB
54 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Meteverse Limited

Technology Stack

5 Technologies Detected

CSS Frameworks

2
Tailwind CSS
Normalize.css

Libraries

1
jQueryv1.11.3

UI Components

1
Swiper

Web Servers

1
Nginxv1.20.2

SEO Analysis

D50/100
13
10
2
Meta Tags7/15
Content9/12
Headings3/8
Technical16/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
I
i4.cni4.cn

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Title Length20 chars

Recommended: 50-60 chars (~124px / 580px)

Description Length90 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (45/70) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

30,008 URLs

robots.txt

23 rules

Sitemap reference found

Local SEO

Local Search Readiness

6/100
Poor
2 13 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

F36/100
Bot Access
20/25
Machine Read.
8/25
Schema Data
0/25
Citation
8/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
def. lists
Text ratio:4%
Words:397
Token eff.:Optimal
Sections/1K:10.1
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary10w
Descriptive Headingsavg 1w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...
Upgrade to view recommendations

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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
D
56/100
8
Passed
7
Critical
1
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
7/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
5/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 recommendations
  • •Accessibility recommendation preview...
Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
49/100
A+
2 mg
CO₂e / view
16.9 KB
Page Weight
95%
Cleaner Than
New Visitor
2 mg
vs
Returning (cached)
1 mg
Annual (10K/mo)
252 g
Emission Segments
Data Center
<0.001 g
Network
<0.001 g
Device
1 mg
Resource Breakdown
HTML
16.9 KB
Green Hosting Not Verified
Meteverse Limited
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

292d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

21.01.2026

Valid Until

19.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.i4.cni4.cn

SHA-256 Fingerprint

D7:E0:D4:AD:EC:F5:A3:FD:A8:C8:19:98:7B:4A:3F:E5:A8:B5:93:97...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

connection
keep-alive
content-encoding
📦 Gzip(gzip)
content-language
zh-CN
content-type
text/html;charset=utf-8
date
Sun, 03 May 2026 09:36:38 GMT
server
nginx/1.20.2
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

i4.cn

DNSSEC
Not Enabled

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
D
58/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1.0
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Microsoft YaHei

WCAG Partial
52/100
Readability
/30
13/30

16px · LH 1.15

Hierarchy
/20
8/20
WCAG
/25
17/25

1:1 min contrast

Performance
/25
14/25

1 font

Heading Font

Microsoft YaHei

Sans

Body Font

Microsoft YaHei

Sans16px

Contrast Ratio

1:1

16 issues

Reading Comfort

~110 CPL

Too wide
22px
h2
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Tight line spacing (1.15). Increase to 1.4–1.6 for better readability.

❌ Very long lines: ~110 chars/line causes eye strain. Add max-width constraint.

⚠️ Partial contrast: 16 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

Buy on MyFontsFlesch 56

Color Palette

10 unique colors
Light
#2c65e7
Primary· 25.6%
#408bfc
Accent· 13.899999999999999%
#5375f6
Accent· 13.2%
#fffffe
Accent· 9.4%
#87b1f5
Accent· 7.7%
#99c6f9
Accent· 6.6%
#67b0ed
Accent· 6.1%
#d5eae9
Secondary· 2.9%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

11 Resources

5
Scripts
6
Styles
1
Async
0
Defer

Top Script Sources

d-image.i4.cn(3)fxgate.baidu.com(1)hm.baidu.com(1)

Website Identity

i4.cn

Location detected: 🇨🇳 Chinavia tld
en

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Last analyzed: 03 May 2026 at 09:37

Historical Analysis & Change Tracking